One of NASA's AIM satellite's goals is to study space weather phenomena. Last year it provided the first global-scale, full-season view of iridescent polar clouds that form 50 miles above Earth's surface known as "Night-Shining" clouds. Night Shining clouds form at a high altitude which lets them reflect sunlight long after the sun has set.
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This story, "Top 10 cool satellite projects" was originally published by Network World.